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F214 Photosynthesis-Part 1
The Importance of photosynthesis (pg 58-59+class notes)
What is an Autotrophs?
-Definition: An organisms that uses light energy or chemical energy and organic molecules such
as carbon dioxide, water molecules to synthesize complex organic molecules
1.Examples of Autotrophs include chemoautotroph's
-The first form of Autotrophs were on Earth were chemoautotroph's, which are prokaryotes that
synthesis complex organic molecules, using energy derived from exrginc chemical reactions
-Examples of chemoautotroph's are nitrifying bacteria used for recycling nitrogen because they
obtain their energy from oxidizing ammonia to nitrate or oxidate nitrite into nitrates
-Another example of an chemoautotroph are organisms living near darkness, near oceanic vents
which supports a very specific food chain for those area
2.Example of a autotrphs are phototrophs
-Phototrophs are organisms that can photosynthesize, THEY CAN SELF FEEDING FOR PETE SAKE!
-Their source of energy is sunlight and their raw material is inorganic molecules such as carbon
-Funnily enough, Majority of photoautotroph's are the food chains of the Earth
-Examples: Plants, some bacteria and some prototista like algae
What is a hetrotroph?
Definition: Basically, Hetrotroph are Organisms that ingest and digest complex organic
molecules, releasing the chemical potential energy stored in them. THEY CANT SELF FEED AND
ARE FED TO THEM LIKE A SILLY NAPPY BABY!
Examples include: Animals...like a giant panda sitting chewing on some bamboo shoots, fungi
and some bacteria because they cant make their own food, and reply on consuming other
organisms to get their food required for metabolic processes. But they can digest complex
organic molecules such as lipids, proteins and nucleic acids
Other pages in this set
Here's a taster:
What the hell is photosynthesis is all about?
Photosynthesis is a process whereby light energy from the sun is transformed into chemical
energy and used to synthesis large organic molecules from the inorganic substances
Some looney Scientists think that the process first evolves from some prokaryotes which is the
ancestor of modern-day cyanobacteria, somewhat 25000millions years back...…read more